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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-777 6 Severna Park MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2011-10-03   
410-777 7 Severna Park MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-777 8 Severna Park MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2005-10-23   
410-777 9 Severna Park MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-778 A Chestertown MD CHRTMDCHDS0  9212 VERIZON MARYLAND, INC. 242      
410-779 A Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-779 0 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-779 1 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-779 2 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-779 3 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
410-779 4 Baltimore MD   829J PAETEC ITEL, LLC 238   2010-01-15   
410-779 5 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-779 6 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-779 7 Baltimore MD   829J PAETEC ITEL, LLC 238      
410-779 8 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2006-02-07   
410-779 9 Baltimore MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2010-03-29   
410-780 A Essex MD ESSXMDEXDS0  9212 VERIZON MARYLAND, INC. 238      
410-781 A Ellicott City MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-781 0 Ellicott City MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-781 1 Ellicott City MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-10   
410-781 2 Ellicott City MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2006-05-04   
410-781 3 Ellicott City MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-04-13   
410-781 4 Ellicott City MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-781 5 Ellicott City MD BLTQMD012MD  964H BARR TELL USA, INC. 238   2016-12-17   
410-781 6 Ellicott City MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-781 7 Ellicott City MD SYVLMDSKDS0  9212 VERIZON MARYLAND, INC. 238      
410-781 8 Ellicott City MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2008-04-16   
410-781 9 Ellicott City MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-02-15   
410-782 A Elkridge MD EKRGMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-782 0 Elkridge MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-04-07   
410-782 1 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2006-05-15   
410-782 2 Elkridge MD EKRGMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-782 3 Elkridge MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-02-07   
410-782 4 Elkridge MD   829J PAETEC ITEL, LLC 238   2003-02-25   
410-782 5 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2006-05-15   
410-782 6 Elkridge MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
410-782 7 Elkridge MD EKRGMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-782 8 Elkridge MD EKRGMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-782 9 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2006-07-27   
410-783 A Baltimore MD BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-784 A Deal Island MD DLISMDDLRS0  9212 VERIZON MARYLAND, INC. 242      
410-784 0 Deal Island MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-784 1 Deal Island MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-15   
410-784 2 Deal Island MD DLISMDDLRS0  9212 VERIZON MARYLAND, INC. 242      
410-784 4 Deal Island MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-13   
410-784 7 Deal Island MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2006-07-31   
410-784 8 Deal Island MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-784 9 Deal Island MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-05-27   
410-785 A Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-786 A Woodlawn MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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